403424120 has 64 divisors (see below), whose sum is σ = 993189600. Its totient is φ = 146260480.

The previous prime is 403424101. The next prime is 403424129. The reversal of 403424120 is 21424304.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 403424092 and 403424101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403424129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169982 + ... + 172338.

Almost surely, 2^403424120 is an apocalyptic number.

403424120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 403424120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (496594800).

403424120 is an abundant number, since it is smaller than the sum of its proper divisors (589765480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

403424120 is a wasteful number, since it uses less digits than its factorization.

403424120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2768 (or 2764 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 403424120 is about 20085.4205830996. The cubic root of 403424120 is about 738.9027566152.

Adding to 403424120 its reverse (21424304), we get a palindrome (424848424).

The spelling of 403424120 in words is "four hundred three million, four hundred twenty-four thousand, one hundred twenty".